Solve any maths problem
Equations, derivatives, integrals, matrices, triangles, primes, statistics, or a word problem the tutor breaks into parts.
Step by step
- \frac{d}{dr}\left[\frac{4 \pi r^{3}}{3}\right]
Start from the derivative to compute.
- \frac{4 \pi \frac{d}{d r} r^{3}}{3}
Constant multiple rule: pull the constant out.
- 4 \pi r^{2}
Power rule: (xⁿ)′ = n·xⁿ⁻¹ with n = 3.
Reveal the answer
f'(r) = 4 \pi r^{2}